Home / 1,921,019,891.76-2,881,699,986.24-540,846,357.12

Finding the Fourth Proportional to 1,921,019,891.76, 2,881,699,986.24 and 540,846,357.12

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Solution

The fourth proportional to 1,921,019,891.76, 2,881,699,986.24 and 540,846,357.12 is: 811,317,439.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,019,891.76 : 2,881,699,986.24 = 540,846,357.12 : x
  2. Step 2: Convert to fraction form
    1,921,019,891.76/2,881,699,986.24 = 540,846,357.12/x
  3. Step 3: Cross multiply
    1,921,019,891.76x = 2,881,699,986.24 × 540,846,357.12
  4. Step 4: Simplify right side
    1,921,019,891.76x = 1,558,556,939,870,658,048
  5. Step 5: Solve for x
    x = 1,558,556,939,870,658,048/1,921,019,891.76
  6. Step 6: Final answer
    x = 811,317,439.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.